Casio FX-CG10 Software User Guide - Page 76
Integration Calculations
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k Integration Calculations [OPTN]-[CALC]-[∫dx] To perform integration calculations, first display the function analysis menu and then input the values using the syntax below. K4(CALC)4(∫dx) f(x)e a f b or 4(MATH)6(g)1(∫dx) f(x)e a f b K4(CALC)4(∫dx) f(x) , a , b , tol ) (a: lower limit, b: upper limit, tol: tolerance) ∫ ∫ ( f(x), a, b, tol) ⇒ b f (x)dx a ∫b Area of f(x)dx is calculated a As shown in the illustration above, integration calculations are performed by calculating integral values from a through b for the function y = f (x) where a < x < b, and f (x) > 0. This in effect calculates the surface area of the shaded area in the illustration. Example To perform the integration calculation for the function shown below, with a tolerance of "tol" = 1E - 4 ∫ 5 (2x2 + 3x + 4) dx 1 • Math input/output mode K4(CALC)4(∫dx)cvx+ dv+eebffw • Linear input/output mode Input the function f (x). AK4(CALC)4(∫dx)cvx+dv+e, Input the start point, end point, and the tolerance value. b,f,bE-e)w 2-30